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Determination of Cd, Mo, Cr and Co in biological materials by RNAA

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Abstract

A method for the determination of trace amounts of Mo, Cd, Co and Cr in biological materials by neutron activation analysis with radiochemical separation is presented. The method is based on the ion-exchange scheme developed by SAMSAHL, where Co and Cr are trapped on BioRad Chelex-100 and Cd and Mo on BioRad AG2X8. The elements Mo, Cd and Co can be determined without systematic errors. For the element chromium the situation is less clear, partially due to lack of sufficient certified reference materials for Cr. The method has been used in the characterization of candidate reference materials. Detection limits in these materials range from 1.5 μg/kg for Co to 10 μg/kg for Cr. Actual levels as low as 8 μg/kg for Cd and 7 μg/kg for Co were measured.

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Author notes

  1. M. De La Cruz Tangonan (IAEA fellow)

    Present address: Philippine Nuclear Research Institute, Philippine

Authors and Affiliations

  1. Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, (The Netherlands)

    J. R. W. Woittiez & M. De La Cruz Tangonan (IAEA fellow)

Authors
  1. J. R. W. Woittiez
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  2. M. De La Cruz Tangonan
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Woittiez, J.R.W., De La Cruz Tangonan, M. Determination of Cd, Mo, Cr and Co in biological materials by RNAA. Journal of Radioanalytical and Nuclear Chemistry, Articles 158, 313–321 (1992). https://doi.org/10.1007/BF02047118

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  • DOI: https://doi.org/10.1007/BF02047118

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